Commit 4427d6bf authored by Vitaly Bordug's avatar Vitaly Bordug Committed by Paul Mackerras

[PATCH] ppc32: Update board-specific code of the CPM UART users

This has the relevant updates/additions to the BSP code so that proper
platform_info struct well be passed to the CPM UART drivers. The changes
covered mpc866ads, mpc885ads and mpc8272ads.
Signed-off-by: default avatarVitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent e27987cd
......@@ -26,11 +26,35 @@
#include <asm/irq.h>
#include <asm/ppc_sys.h>
#include <asm/ppcboot.h>
#include <linux/fs_uart_pd.h>
#include "pq2ads_pd.h"
static void init_fcc1_ioports(void);
static void init_fcc2_ioports(void);
static void init_scc1_uart_ioports(void);
static void init_scc4_uart_ioports(void);
static struct fs_uart_platform_info mpc8272_uart_pdata[] = {
[fsid_scc1_uart] = {
.init_ioports = init_scc1_uart_ioports,
.fs_no = fsid_scc1_uart,
.brg = 1,
.tx_num_fifo = 4,
.tx_buf_size = 32,
.rx_num_fifo = 4,
.rx_buf_size = 32,
},
[fsid_scc4_uart] = {
.init_ioports = init_scc4_uart_ioports,
.fs_no = fsid_scc4_uart,
.brg = 4,
.tx_num_fifo = 4,
.tx_buf_size = 32,
.rx_num_fifo = 4,
.rx_buf_size = 32,
},
};
static struct fs_mii_bus_info mii_bus_info = {
.method = fsmii_bitbang,
......@@ -201,6 +225,55 @@ static void __init mpc8272ads_fixup_enet_pdata(struct platform_device *pdev,
}
}
static void mpc8272ads_fixup_uart_pdata(struct platform_device *pdev,
int idx)
{
bd_t *bd = (bd_t *) __res;
struct fs_uart_platform_info *pinfo;
int num = ARRAY_SIZE(mpc8272_uart_pdata);
int id = fs_uart_id_scc2fsid(idx);
/* no need to alter anything if console */
if ((id <= num) && (!pdev->dev.platform_data)) {
pinfo = &mpc8272_uart_pdata[id];
pinfo->uart_clk = bd->bi_intfreq;
pdev->dev.platform_data = pinfo;
}
}
static void init_scc1_uart_ioports(void)
{
cpm2_map_t* immap = ioremap(CPM_MAP_ADDR, sizeof(cpm2_map_t));
/* SCC1 is only on port D */
setbits32(&immap->im_ioport.iop_ppard,0x00000003);
clrbits32(&immap->im_ioport.iop_psord,0x00000001);
setbits32(&immap->im_ioport.iop_psord,0x00000002);
clrbits32(&immap->im_ioport.iop_pdird,0x00000001);
setbits32(&immap->im_ioport.iop_pdird,0x00000002);
/* Wire BRG1 to SCC1 */
clrbits32(&immap->im_cpmux.cmx_scr,0x00ffffff);
iounmap(immap);
}
static void init_scc4_uart_ioports(void)
{
cpm2_map_t* immap = ioremap(CPM_MAP_ADDR, sizeof(cpm2_map_t));
setbits32(&immap->im_ioport.iop_ppard,0x00000600);
clrbits32(&immap->im_ioport.iop_psord,0x00000600);
clrbits32(&immap->im_ioport.iop_pdird,0x00000200);
setbits32(&immap->im_ioport.iop_pdird,0x00000400);
/* Wire BRG4 to SCC4 */
clrbits32(&immap->im_cpmux.cmx_scr,0x000000ff);
setbits32(&immap->im_cpmux.cmx_scr,0x0000001b);
iounmap(immap);
}
static int mpc8272ads_platform_notify(struct device *dev)
{
static const struct platform_notify_dev_map dev_map[] = {
......@@ -208,6 +281,10 @@ static int mpc8272ads_platform_notify(struct device *dev)
.bus_id = "fsl-cpm-fcc",
.rtn = mpc8272ads_fixup_enet_pdata
},
{
.bus_id = "fsl-cpm-scc:uart",
.rtn = mpc
},
{
.bus_id = NULL
}
......@@ -230,7 +307,44 @@ int __init mpc8272ads_init(void)
ppc_sys_device_enable(MPC82xx_CPM_FCC1);
ppc_sys_device_enable(MPC82xx_CPM_FCC2);
/* to be ready for console, let's attach pdata here */
#ifdef CONFIG_SERIAL_CPM_SCC1
ppc_sys_device_setfunc(MPC82xx_CPM_SCC1, PPC_SYS_FUNC_UART);
ppc_sys_device_enable(MPC82xx_CPM_SCC1);
#endif
#ifdef CONFIG_SERIAL_CPM_SCC4
ppc_sys_device_setfunc(MPC82xx_CPM_SCC4, PPC_SYS_FUNC_UART);
ppc_sys_device_enable(MPC82xx_CPM_SCC4);
#endif
return 0;
}
/*
To prevent confusion, console selection is gross:
by 0 assumed SCC1 and by 1 assumed SCC4
*/
struct platform_device* early_uart_get_pdev(int index)
{
bd_t *bd = (bd_t *) __res;
struct fs_uart_platform_info *pinfo;
struct platform_device* pdev = NULL;
if(index) { /*assume SCC4 here*/
pdev = &ppc_sys_platform_devices[MPC82xx_CPM_SCC4];
pinfo = &mpc8272<F12>_uart_pdata[1];
} else { /*over SCC1*/
pdev = &ppc_sys_platform_devices[MPC82xx_CPM_SCC1];
pinfo = &mpc8272_uart_pdata[0];
}
pinfo->uart_clk = bd->bi_intfreq;
pdev->dev.platform_data = pinfo;
ppc_sys_fixup_mem_resource(pdev, IMAP_ADDR);
return NULL;
}
arch_initcall(mpc8272ads_init);
......@@ -20,6 +20,7 @@
#include <linux/device.h>
#include <linux/fs_enet_pd.h>
#include <linux/fs_uart_pd.h>
#include <linux/mii.h>
#include <asm/delay.h>
......@@ -37,6 +38,11 @@
extern unsigned char __res[];
static void setup_fec1_ioports(void);
static void setup_scc1_ioports(void);
static void setup_smc1_ioports(void);
static void setup_smc2_ioports(void);
static struct fs_mii_bus_info fec_mii_bus_info = {
.method = fsmii_fec,
.id = 0,
......@@ -79,6 +85,28 @@ static struct fs_platform_info mpc8xx_scc_pdata = {
.phy_irq = -1,
.bus_info = &scc_mii_bus_info,
};
static struct fs_uart_platform_info mpc866_uart_pdata[] = {
[fsid_smc1_uart] = {
.brg = 1,
.fs_no = fsid_smc1_uart,
.init_ioports = setup_smc1_ioports,
.tx_num_fifo = 4,
.tx_buf_size = 32,
.rx_num_fifo = 4,
.rx_buf_size = 32,
},
[fsid_smc2_uart] = {
.brg = 2,
.fs_no = fsid_smc2_uart,
.init_ioports = setup_smc2_ioports,
.tx_num_fifo = 4,
.tx_buf_size = 32,
.rx_num_fifo = 4,
.rx_buf_size = 32,
},
};
void __init board_init(void)
......@@ -92,9 +120,12 @@ void __init board_init(void)
printk(KERN_CRIT "Could not remap BCSR1\n");
return;
}
#ifdef CONFIG_SERIAL_CPM_SMC1
cp->cp_simode &= ~(0xe0000000 >> 17); /* brg1 */
clrbits32(bcsr_io,(0x80000000 >> 7));
cp->cp_smc[0].smc_smcm |= (SMCM_RX | SMCM_TX);
cp->cp_smc[0].smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
#else
setbits32(bcsr_io,(0x80000000 >> 7));
......@@ -108,6 +139,8 @@ void __init board_init(void)
cp->cp_simode &= ~(0xe0000000 >> 1);
cp->cp_simode |= (0x20000000 >> 1); /* brg2 */
clrbits32(bcsr_io,(0x80000000 >> 13));
cp->cp_smc[1].smc_smcm |= (SMCM_RX | SMCM_TX);
cp->cp_smc[1].smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
#else
clrbits32(bcsr_io,(0x80000000 >> 13));
cp->cp_pbpar &= ~(0x00000c00);
......@@ -232,6 +265,74 @@ static void mpc866ads_fixup_scc_enet_pdata(struct platform_device *pdev,
mpc866ads_fixup_enet_pdata(pdev, fsid_scc1 + pdev->id - 1);
}
static void setup_smc1_ioports(void)
{
immap_t *immap = (immap_t *) IMAP_ADDR;
unsigned *bcsr_io;
unsigned int iobits = 0x000000c0;
bcsr_io = ioremap(BCSR1, sizeof(unsigned long));
if (bcsr_io == NULL) {
printk(KERN_CRIT "Could not remap BCSR1\n");
return;
}
clrbits32(bcsr_io,BCSR1_RS232EN_1);
iounmap(bcsr_io);
setbits32(&immap->im_cpm.cp_pbpar, iobits);
clrbits32(&immap->im_cpm.cp_pbdir, iobits);
clrbits16(&immap->im_cpm.cp_pbodr, iobits);
}
static void setup_smc2_ioports(void)
{
immap_t *immap = (immap_t *) IMAP_ADDR;
unsigned *bcsr_io;
unsigned int iobits = 0x00000c00;
bcsr_io = ioremap(BCSR1, sizeof(unsigned long));
if (bcsr_io == NULL) {
printk(KERN_CRIT "Could not remap BCSR1\n");
return;
}
clrbits32(bcsr_io,BCSR1_RS232EN_2);
iounmap(bcsr_io);
#ifndef CONFIG_SERIAL_CPM_ALT_SMC2
setbits32(&immap->im_cpm.cp_pbpar, iobits);
clrbits32(&immap->im_cpm.cp_pbdir, iobits);
clrbits16(&immap->im_cpm.cp_pbodr, iobits);
#else
setbits16(&immap->im_ioport.iop_papar, iobits);
clrbits16(&immap->im_ioport.iop_padir, iobits);
clrbits16(&immap->im_ioport.iop_paodr, iobits);
#endif
}
static void __init mpc866ads_fixup_uart_pdata(struct platform_device *pdev,
int idx)
{
bd_t *bd = (bd_t *) __res;
struct fs_uart_platform_info *pinfo;
int num = ARRAY_SIZE(mpc866_uart_pdata);
int id = fs_uart_id_smc2fsid(idx);
/* no need to alter anything if console */
if ((id <= num) && (!pdev->dev.platform_data)) {
pinfo = &mpc866_uart_pdata[id];
pinfo->uart_clk = bd->bi_intfreq;
pdev->dev.platform_data = pinfo;
}
}
static int mpc866ads_platform_notify(struct device *dev)
{
static const struct platform_notify_dev_map dev_map[] = {
......@@ -243,6 +344,10 @@ static int mpc866ads_platform_notify(struct device *dev)
.bus_id = "fsl-cpm-scc",
.rtn = mpc866ads_fixup_scc_enet_pdata,
},
{
.bus_id = "fsl-cpm-smc:uart",
.rtn = mpc866ads_fixup_uart_pdata
},
{
.bus_id = NULL
}
......@@ -267,7 +372,42 @@ int __init mpc866ads_init(void)
#endif
ppc_sys_device_enable(MPC8xx_CPM_FEC1);
/* Since either of the uarts could be used as console, they need to ready */
#ifdef CONFIG_SERIAL_CPM_SMC1
ppc_sys_device_enable(MPC8xx_CPM_SMC1);
ppc_sys_device_setfunc(MPC8xx_CPM_SMC1, PPC_SYS_FUNC_UART);
#endif
#ifdef CONFIG_SERIAL_CPM_SMCer
ppc_sys_device_enable(MPC8xx_CPM_SMC2);
ppc_sys_device_setfunc(MPC8xx_CPM_SMC2, PPC_SYS_FUNC_UART);
#endif
return 0;
}
/*
To prevent confusion, console selection is gross:
by 0 assumed SMC1 and by 1 assumed SMC2
*/
struct platform_device* early_uart_get_pdev(int index)
{
bd_t *bd = (bd_t *) __res;
struct fs_uart_platform_info *pinfo;
struct platform_device* pdev = NULL;
if(index) { /*assume SMC2 here*/
pdev = &ppc_sys_platform_devices[MPC8xx_CPM_SMC2];
pinfo = &mpc866_uart_pdata[1];
} else { /*over SMC1*/
pdev = &ppc_sys_platform_devices[MPC8xx_CPM_SMC1];
pinfo = &mpc866_uart_pdata[0];
}
pinfo->uart_clk = bd->bi_intfreq;
pdev->dev.platform_data = pinfo;
ppc_sys_fixup_mem_resource(pdev, IMAP_ADDR);
return NULL;
}
arch_initcall(mpc866ads_init);
......@@ -20,6 +20,7 @@
#include <linux/device.h>
#include <linux/fs_enet_pd.h>
#include <linux/fs_uart_pd.h>
#include <linux/mii.h>
#include <asm/delay.h>
......@@ -35,9 +36,32 @@
#include <asm/ppc_sys.h>
extern unsigned char __res[];
static void setup_smc1_ioports(void);
static void setup_smc2_ioports(void);
static void __init mpc885ads_scc_phy_init(char);
static struct fs_uart_platform_info mpc885_uart_pdata[] = {
[fsid_smc1_uart] = {
.brg = 1,
.fs_no = fsid_smc1_uart,
.init_ioports = setup_smc1_ioports,
.tx_num_fifo = 4,
.tx_buf_size = 32,
.rx_num_fifo = 4,
.rx_buf_size = 32,
},
[fsid_smc2_uart] = {
.brg = 2,
.fs_no = fsid_smc2_uart,
.init_ioports = setup_smc2_ioports,
.tx_num_fifo = 4,
.tx_buf_size = 32,
.rx_num_fifo = 4,
.rx_buf_size = 32,
},
};
static struct fs_mii_bus_info fec_mii_bus_info = {
.method = fsmii_fec,
.id = 0,
......@@ -116,6 +140,8 @@ void __init board_init(void)
#ifdef CONFIG_SERIAL_CPM_SMC1
cp->cp_simode &= ~(0xe0000000 >> 17); /* brg1 */
clrbits32(bcsr_io, BCSR1_RS232EN_1);
cp->cp_smc[0].smc_smcm |= (SMCM_RX | SMCM_TX);
cp->cp_smc[0].smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
#else
setbits32(bcsr_io,BCSR1_RS232EN_1);
cp->cp_smc[0].smc_smcmr = 0;
......@@ -126,6 +152,8 @@ void __init board_init(void)
cp->cp_simode &= ~(0xe0000000 >> 1);
cp->cp_simode |= (0x20000000 >> 1); /* brg2 */
clrbits32(bcsr_io,BCSR1_RS232EN_2);
cp->cp_smc[1].smc_smcm |= (SMCM_RX | SMCM_TX);
cp->cp_smc[1].smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
#else
setbits32(bcsr_io,BCSR1_RS232EN_2);
cp->cp_smc[1].smc_smcmr = 0;
......@@ -343,6 +371,70 @@ static void mpc885ads_scc_phy_init(char phy_addr)
out_be32(&fecp->fec_mii_speed, 0);
}
static void setup_smc1_ioports(void)
{
immap_t *immap = (immap_t *) IMAP_ADDR;
unsigned *bcsr_io;
unsigned int iobits = 0x000000c0;
bcsr_io = ioremap(BCSR1, sizeof(unsigned long));
if (bcsr_io == NULL) {
printk(KERN_CRIT "Could not remap BCSR1\n");
return;
}
clrbits32(bcsr_io,BCSR1_RS232EN_1);
iounmap(bcsr_io);
setbits32(&immap->im_cpm.cp_pbpar, iobits);
clrbits32(&immap->im_cpm.cp_pbdir, iobits);
clrbits16(&immap->im_cpm.cp_pbodr, iobits);
}
static void setup_smc2_ioports(void)
{
immap_t *immap = (immap_t *) IMAP_ADDR;
unsigned *bcsr_io;
unsigned int iobits = 0x00000c00;
bcsr_io = ioremap(BCSR1, sizeof(unsigned long));
if (bcsr_io == NULL) {
printk(KERN_CRIT "Could not remap BCSR1\n");
return;
}
clrbits32(bcsr_io,BCSR1_RS232EN_2);
iounmap(bcsr_io);
#ifndef CONFIG_SERIAL_CPM_ALT_SMC2
setbits32(&immap->im_cpm.cp_pbpar, iobits);
clrbits32(&immap->im_cpm.cp_pbdir, iobits);
clrbits16(&immap->im_cpm.cp_pbodr, iobits);
#else
setbits16(&immap->im_ioport.iop_papar, iobits);
clrbits16(&immap->im_ioport.iop_padir, iobits);
clrbits16(&immap->im_ioport.iop_paodr, iobits);
#endif
}
static void __init mpc885ads_fixup_uart_pdata(struct platform_device *pdev,
int idx)
{
bd_t *bd = (bd_t *) __res;
struct fs_uart_platform_info *pinfo;
int num = ARRAY_SIZE(mpc885_uart_pdata);
int id = fs_uart_id_smc2fsid(idx);
/* no need to alter anything if console */
if ((id <= num) && (!pdev->dev.platform_data)) {
pinfo = &mpc885_uart_pdata[id];
pinfo->uart_clk = bd->bi_intfreq;
pdev->dev.platform_data = pinfo;
}
}
static int mpc885ads_platform_notify(struct device *dev)
{
......@@ -355,6 +447,10 @@ static int mpc885ads_platform_notify(struct device *dev)
.bus_id = "fsl-cpm-scc",
.rtn = mpc885ads_fixup_scc_enet_pdata,
},
{
.bus_id = "fsl-cpm-smc:uart",
.rtn = mpc885ads_fixup_uart_pdata
},
{
.bus_id = NULL
}
......@@ -362,6 +458,7 @@ static int mpc885ads_platform_notify(struct device *dev)
platform_notify_map(dev_map,dev);
return 0;
}
int __init mpc885ads_init(void)
......@@ -383,7 +480,41 @@ int __init mpc885ads_init(void)
ppc_sys_device_enable(MPC8xx_CPM_FEC2);
#endif
#ifdef CONFIG_SERIAL_CPM_SMC1
ppc_sys_device_enable(MPC8xx_CPM_SMC1);
ppc_sys_device_setfunc(MPC8xx_CPM_SMC1, PPC_SYS_FUNC_UART);
#endif
#ifdef CONFIG_SERIAL_CPM_SMC2
ppc_sys_device_enable(MPC8xx_CPM_SMC2);
ppc_sys_device_setfunc(MPC8xx_CPM_SMC2, PPC_SYS_FUNC_UART);
#endif
return 0;
}
arch_initcall(mpc885ads_init);
/*
To prevent confusion, console selection is gross:
by 0 assumed SMC1 and by 1 assumed SMC2
*/
struct platform_device* early_uart_get_pdev(int index)
{
bd_t *bd = (bd_t *) __res;
struct fs_uart_platform_info *pinfo;
struct platform_device* pdev = NULL;
if(index) { /*assume SMC2 here*/
pdev = &ppc_sys_platform_devices[MPC8xx_CPM_SMC2];
pinfo = &mpc885_uart_pdata[1];
} else { /*over SMC1*/
pdev = &ppc_sys_platform_devices[MPC8xx_CPM_SMC1];
pinfo = &mpc885_uart_pdata[0];
}
pinfo->uart_clk = bd->bi_intfreq;
pdev->dev.platform_data = pinfo;
ppc_sys_fixup_mem_resource(pdev, IMAP_ADDR);
return NULL;
}
......@@ -14,11 +14,40 @@
#include <linux/init.h>
#include <asm/io.h>
#include <asm/mpc8260.h>
#include <asm/cpm2.h>
#include <asm/immap_cpm2.h>
void __init
m82xx_board_setup(void)
{
cpm2_map_t* immap = ioremap(CPM_MAP_ADDR, sizeof(cpm2_map_t));
u32 *bcsr = ioremap(BCSR_ADDR+4, sizeof(u32));
/* Enable the 2nd UART port */
*(volatile uint *)(BCSR_ADDR + 4) &= ~BCSR1_RS232_EN2;
clrbits32(bcsr, BCSR1_RS232_EN2);
#ifdef CONFIG_SERIAL_CPM_SCC1
clrbits32((u32*)&immap->im_scc[0].scc_sccm, UART_SCCM_TX | UART_SCCM_RX);
clrbits32((u32*)&immap->im_scc[0].scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT);
#endif
#ifdef CONFIG_SERIAL_CPM_SCC2
clrbits32((u32*)&immap->im_scc[1].scc_sccm, UART_SCCM_TX | UART_SCCM_RX);
clrbits32((u32*)&immap->im_scc[1].scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT);
#endif
#ifdef CONFIG_SERIAL_CPM_SCC3
clrbits32((u32*)&immap->im_scc[2].scc_sccm, UART_SCCM_TX | UART_SCCM_RX);
clrbits32((u32*)&immap->im_scc[2].scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT);
#endif
#ifdef CONFIG_SERIAL_CPM_SCC4
clrbits32((u32*)&immap->im_scc[3].scc_sccm, UART_SCCM_TX | UART_SCCM_RX);
clrbits32((u32*)&immap->im_scc[3].scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT);
#endif
iounmap(bcsr);
iounmap(immap);
}
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