> -----Original Message-----
> From: Hiremath, Vaibhav
> Sent: Tuesday, September 20, 2011 8:02 PM
> To: linux-omap@xxxxxxxxxxxxxxx
> Cc: Hilman, Kevin; paul@xxxxxxxxx; tony@xxxxxxxxxxx; linux-arm-
> kernel@xxxxxxxxxxxxxxxxxxx; Mohammed, Afzal; Hiremath, Vaibhav
> Subject: [PATCH-V3 2/4] arm:omap:am33xx: Update common OMAP machine
> specific sources
>
> From: Afzal Mohammed <afzal@xxxxxx>
>
> This patch updates the common machine specific source files for
> support for AM33XX/AM335x with cpu type, macros for identification of
> AM33XX/AM335X device.
>
> Signed-off-by: Afzal Mohammed <afzal@xxxxxx>
> Signed-off-by: Vaibhav Hiremath <hvaibhav@xxxxxx>
> ---
> arch/arm/mach-omap2/clock3xxx_data.c | 6 +++++-
> arch/arm/mach-omap2/common.c | 16 ++++++++++++++++
> arch/arm/mach-omap2/id.c | 10 ++++++++--
> arch/arm/mach-omap2/io.c | 25
> +++++++++++++++++++++++++
> arch/arm/mach-omap2/serial.c | 6 +++---
> arch/arm/plat-omap/include/plat/am33xx.h | 25
> +++++++++++++++++++++++++
> arch/arm/plat-omap/include/plat/common.h | 1 +
> arch/arm/plat-omap/include/plat/hardware.h | 1 +
> arch/arm/plat-omap/include/plat/io.h | 20 ++++++++++++++++++++
> arch/arm/plat-omap/include/plat/omap34xx.h | 2 ++
> arch/arm/plat-omap/io.c | 5 +++++
> 11 files changed, 111 insertions(+), 6 deletions(-)
> create mode 100644 arch/arm/plat-omap/include/plat/am33xx.h
>
> diff --git a/arch/arm/mach-omap2/clock3xxx_data.c b/arch/arm/mach-
> omap2/clock3xxx_data.c
> index dadb8c6..2ee472c 100644
> --- a/arch/arm/mach-omap2/clock3xxx_data.c
> +++ b/arch/arm/mach-omap2/clock3xxx_data.c
> @@ -3493,6 +3493,9 @@ int __init omap3xxx_clk_init(void)
> } else if (cpu_is_ti816x()) {
> cpu_mask = RATE_IN_TI816X;
> cpu_clkflg = CK_TI816X;
> + } else if (cpu_is_am33xx()) {
> + cpu_mask = RATE_IN_AM33XX;
> + cpu_clkflg = CK_AM33XX;
> } else if (cpu_is_omap34xx()) {
> if (omap_rev() == OMAP3430_REV_ES1_0) {
> cpu_mask = RATE_IN_3430ES1;
> @@ -3576,7 +3579,8 @@ int __init omap3xxx_clk_init(void)
> * Lock DPLL5 -- here only until other device init code can
> * handle this
> */
> - if (!cpu_is_ti816x() && (omap_rev() >= OMAP3430_REV_ES2_0))
> + if (!cpu_is_ti816x() && !cpu_is_am33xx() &&
> + (omap_rev() >= OMAP3430_REV_ES2_0))
> omap3_clk_lock_dpll5();
>
> /* Avoid sleeping during omap3_core_dpll_m2_set_rate() */
> diff --git a/arch/arm/mach-omap2/common.c b/arch/arm/mach-omap2/common.c
> index 3f20cbb..395a9b6 100644
> --- a/arch/arm/mach-omap2/common.c
> +++ b/arch/arm/mach-omap2/common.c
> @@ -119,6 +119,22 @@ void __init omap2_set_globals_ti816x(void)
> {
> __omap2_set_globals(&ti816x_globals);
> }
> +
> +#define AM33XX_TAP_BASE (AM33XX_CTRL_BASE + \
> + TI816X_CONTROL_DEVICE_ID - 0x204)
> +
> +static struct omap_globals am33xx_globals = {
> + .class = OMAP343X_CLASS,
> + .tap = OMAP2_L4_IO_ADDRESS(AM33XX_TAP_BASE),
> + .ctrl = AM33XX_CTRL_BASE,
> + .prm = AM33XX_PRCM_BASE,
> + .cm = AM33XX_PRCM_BASE,
> +};
> +
> +void __init omap2_set_globals_am33xx(void)
> +{
> + __omap2_set_globals(&am33xx_globals);
> +}
> #endif
>
> #if defined(CONFIG_ARCH_OMAP4)
> diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
> index d27daf9..540b6f1 100644
> --- a/arch/arm/mach-omap2/id.c
> +++ b/arch/arm/mach-omap2/id.c
> @@ -337,6 +337,10 @@ static void __init omap3_check_revision(const char
> **cpu_rev)
> break;
> }
> break;
> + case 0xb944:
> + omap_revision = AM335X_REV_ES1_0;
> + *cpu_rev = "1.0";
> + break;
> default:
> /* Unknown default to latest silicon rev as default */
> omap_revision = OMAP3630_REV_ES1_2;
> @@ -429,6 +433,8 @@ static void __init omap3_cpuinfo(const char *cpu_rev)
> cpu_name = (omap3_has_sgx()) ? "AM3517" : "AM3505";
> } else if (cpu_is_ti816x()) {
> cpu_name = "TI816X";
> + } else if (cpu_is_am335x()) {
> + cpu_name = "AM335X";
> } else if (omap3_has_iva() && omap3_has_sgx()) {
> /* OMAP3430, OMAP3525, OMAP3515, OMAP3503 devices */
> cpu_name = "OMAP3430/3530";
> @@ -469,8 +475,8 @@ void __init omap2_check_revision(void)
> } else if (cpu_is_omap34xx()) {
> omap3_check_revision(&cpu_rev);
>
> - /* TI816X doesn't have feature register */
> - if (!cpu_is_ti816x())
> + /* TI816X/AM335X doesn't have feature register */
> + if (!cpu_is_ti816x() && !cpu_is_am33xx())
> omap3_check_features();
> else
> ti816x_check_features();
> diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
> index 40b6d47..ccd50de 100644
> --- a/arch/arm/mach-omap2/io.c
> +++ b/arch/arm/mach-omap2/io.c
> @@ -182,7 +182,24 @@ static struct map_desc omapti816x_io_desc[]
> __initdata = {
> .pfn = __phys_to_pfn(L4_34XX_PHYS),
> .length = L4_34XX_SIZE,
> .type = MT_DEVICE
> + }
> +};
> +#endif
> +
> +#ifdef CONFIG_SOC_OMAPAM33XX
> +static struct map_desc omapam33xx_io_desc[] __initdata = {
> + {
> + .virtual = L4_34XX_VIRT,
> + .pfn = __phys_to_pfn(L4_34XX_PHYS),
> + .length = L4_34XX_SIZE,
> + .type = MT_DEVICE
> },
> + {
> + .virtual = L4_WK_AM33XX_VIRT,
> + .pfn = __phys_to_pfn(L4_WK_AM33XX_PHYS),
> + .length = L4_WK_AM33XX_SIZE,
> + .type = MT_DEVICE
> + }
> };
> #endif
>
> @@ -286,6 +303,14 @@ void __init omapti816x_map_common_io(void)
> }
> #endif
>
> +#ifdef CONFIG_SOC_OMAPAM33XX
> +void __init omapam33xx_map_common_io(void)
> +{
> + iotable_init(omapam33xx_io_desc, ARRAY_SIZE(omapam33xx_io_desc));
> + _omap2_map_common_io();
> +}
> +#endif
> +
> #ifdef CONFIG_ARCH_OMAP4
> void __init omap44xx_map_common_io(void)
> {
> diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
> index 466fc72..b7782ee 100644
> --- a/arch/arm/mach-omap2/serial.c
> +++ b/arch/arm/mach-omap2/serial.c
> @@ -486,7 +486,7 @@ static void omap_uart_idle_init(struct omap_uart_state
> *uart)
> mod_timer(&uart->timer, jiffies + uart->timeout);
> omap_uart_smart_idle_enable(uart, 0);
>
> - if (cpu_is_omap34xx() && !cpu_is_ti816x()) {
> + if (cpu_is_omap34xx() && !(cpu_is_ti816x() || cpu_is_am33xx())) {
> u32 mod = (uart->num > 1) ? OMAP3430_PER_MOD : CORE_MOD;
> u32 wk_mask = 0;
> u32 padconf = 0;
> @@ -768,7 +768,7 @@ void __init omap_serial_init_port(struct
> omap_board_data *bdata)
> */
> uart->regshift = p->regshift;
> uart->membase = p->membase;
> - if (cpu_is_omap44xx() || cpu_is_ti816x())
> + if (cpu_is_omap44xx() || cpu_is_ti816x() || cpu_is_am33xx())
> uart->errata |= UART_ERRATA_FIFO_FULL_ABORT;
> else if ((serial_read_reg(uart, UART_OMAP_MVER) & 0xFF)
> >= UART_OMAP_NO_EMPTY_FIFO_READ_IP_REV)
> @@ -851,7 +851,7 @@ void __init omap_serial_init_port(struct
> omap_board_data *bdata)
> }
Can I get rid of this if condition as well here with below change -
- * omap44xx, ti816x: Never read empty UART fifo
+ * all >omap3 family of devices: Never read empty UART fifo
* omap3xxx: Never read empty UART fifo on UARTs
* with IP rev >=0x52
*/
uart->regshift = p->regshift;
uart->membase = p->membase;
- if (cpu_is_omap44xx() || cpu_is_ti816x() || cpu_is_am33xx())
- uart->errata |= UART_ERRATA_FIFO_FULL_ABORT;
- else if ((serial_read_reg(uart, UART_OMAP_MVER) & 0xFF)
- >= UART_OMAP_NO_EMPTY_FIFO_READ_IP_REV)
+
+ if ((serial_read_reg(uart, UART_OMAP_MVER) & 0xFF)
+ < UART_OMAP_NO_EMPTY_FIFO_READ_IP_REV)
+ uart->errata &= ~UART_ERRATA_FIFO_FULL_ABORT;
+ else
uart->errata |= UART_ERRATA_FIFO_FULL_ABORT;
if (uart->errata & UART_ERRATA_FIFO_FULL_ABORT) {
Thanks,
Vaibhav
>
> /* Enable the MDR1 errata for OMAP3 */
> - if (cpu_is_omap34xx() && !cpu_is_ti816x())
> + if (cpu_is_omap34xx() && !(cpu_is_ti816x() || cpu_is_am33xx()))
> uart->errata |= UART_ERRATA_i202_MDR1_ACCESS;
> }
>
> diff --git a/arch/arm/plat-omap/include/plat/am33xx.h b/arch/arm/plat-
> omap/include/plat/am33xx.h
> new file mode 100644
> index 0000000..06c19bb
> --- /dev/null
> +++ b/arch/arm/plat-omap/include/plat/am33xx.h
> @@ -0,0 +1,25 @@
> +/*
> + * This file contains the address info for various AM33XX modules.
> + *
> + * Copyright (C) 2011 Texas Instruments, Inc. - http://www.ti.com/
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License as
> + * published by the Free Software Foundation version 2.
> + *
> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any
> + * kind, whether express or implied; without even the implied warranty
> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + */
> +
> +#ifndef __ASM_ARCH_AM33XX_H
> +#define __ASM_ARCH_AM33XX_H
> +
> +#define L4_SLOW_AM33XX_BASE 0x48000000
> +
> +#define AM33XX_SCM_BASE 0x44E10000
> +#define AM33XX_CTRL_BASE AM33XX_SCM_BASE
> +#define AM33XX_PRCM_BASE 0x44E00000
> +
> +#endif /* __ASM_ARCH_AM33XX_H */
> diff --git a/arch/arm/plat-omap/include/plat/common.h b/arch/arm/plat-
> omap/include/plat/common.h
> index 4564cc6..6827e34 100644
> --- a/arch/arm/plat-omap/include/plat/common.h
> +++ b/arch/arm/plat-omap/include/plat/common.h
> @@ -67,6 +67,7 @@ void omap2_set_globals_243x(void);
> void omap2_set_globals_3xxx(void);
> void omap2_set_globals_443x(void);
> void omap2_set_globals_ti816x(void);
> +void omap2_set_globals_am33xx(void);
>
> /* These get called from omap2_set_globals_xxxx(), do not call these */
> void omap2_set_globals_tap(struct omap_globals *);
> diff --git a/arch/arm/plat-omap/include/plat/hardware.h b/arch/arm/plat-
> omap/include/plat/hardware.h
> index e87efe1..e6521e1 100644
> --- a/arch/arm/plat-omap/include/plat/hardware.h
> +++ b/arch/arm/plat-omap/include/plat/hardware.h
> @@ -287,5 +287,6 @@
> #include <plat/omap34xx.h>
> #include <plat/omap44xx.h>
> #include <plat/ti816x.h>
> +#include <plat/am33xx.h>
>
> #endif /* __ASM_ARCH_OMAP_HARDWARE_H */
> diff --git a/arch/arm/plat-omap/include/plat/io.h b/arch/arm/plat-
> omap/include/plat/io.h
> index d72ec85..0c54a00 100644
> --- a/arch/arm/plat-omap/include/plat/io.h
> +++ b/arch/arm/plat-omap/include/plat/io.h
> @@ -73,6 +73,9 @@
> #define OMAP4_L3_IO_OFFSET 0xb4000000
> #define OMAP4_L3_IO_ADDRESS(pa) IOMEM((pa) + OMAP4_L3_IO_OFFSET) /* L3
> */
>
> +#define AM33XX_L4_WK_IO_OFFSET 0xb5000000
> +#define AM33XX_L4_WK_IO_ADDRESS(pa) IOMEM((pa) +
> AM33XX_L4_WK_IO_OFFSET)
> +
> #define OMAP4_L3_PER_IO_OFFSET 0xb1100000
> #define OMAP4_L3_PER_IO_ADDRESS(pa) IOMEM((pa) +
> OMAP4_L3_PER_IO_OFFSET)
>
> @@ -154,6 +157,15 @@
> #define L4_34XX_SIZE SZ_4M /* 1MB of 128MB used, want 1MB sect
> */
>
> /*
> + * ----------------------------------------------------------------------
> ------
> + * AM33XX specific IO mapping
> + * ----------------------------------------------------------------------
> ------
> + */
> +#define L4_WK_AM33XX_PHYS L4_WK_AM33XX_BASE
> +#define L4_WK_AM33XX_VIRT (L4_WK_AM33XX_PHYS +
> AM33XX_L4_WK_IO_OFFSET)
> +#define L4_WK_AM33XX_SIZE SZ_4M /* 1MB of 128MB used, want 1MB
> sect */
> +
> +/*
> * Need to look at the Size 4M for L4.
> * VPOM3430 was not working for Int controller
> */
> @@ -291,6 +303,14 @@ static inline void omapti816x_map_common_io(void)
> }
> #endif
>
> +#ifdef CONFIG_SOC_OMAPAM33XX
> +extern void omapam33xx_map_common_io(void);
> +#else
> +static inline void omapam33xx_map_common_io(void)
> +{
> +}
> +#endif
> +
> #ifdef CONFIG_ARCH_OMAP4
> extern void omap44xx_map_common_io(void);
> #else
> diff --git a/arch/arm/plat-omap/include/plat/omap34xx.h b/arch/arm/plat-
> omap/include/plat/omap34xx.h
> index b9e8588..0d818ac 100644
> --- a/arch/arm/plat-omap/include/plat/omap34xx.h
> +++ b/arch/arm/plat-omap/include/plat/omap34xx.h
> @@ -35,6 +35,8 @@
> #define L4_EMU_34XX_BASE 0x54000000
> #define L3_34XX_BASE 0x68000000
>
> +#define L4_WK_AM33XX_BASE 0x44C00000
> +
> #define OMAP3430_32KSYNCT_BASE 0x48320000
> #define OMAP3430_CM_BASE 0x48004800
> #define OMAP3430_PRM_BASE 0x48306800
> diff --git a/arch/arm/plat-omap/io.c b/arch/arm/plat-omap/io.c
> index f1ecfa9..25a32b2 100644
> --- a/arch/arm/plat-omap/io.c
> +++ b/arch/arm/plat-omap/io.c
> @@ -88,6 +88,11 @@ void __iomem *omap_ioremap(unsigned long p, size_t size,
> unsigned int type)
> if (cpu_is_ti816x()) {
> if (BETWEEN(p, L4_34XX_PHYS, L4_34XX_SIZE))
> return XLATE(p, L4_34XX_PHYS, L4_34XX_VIRT);
> + } else if (cpu_is_am33xx()) {
> + if (BETWEEN(p, L4_34XX_PHYS, L4_34XX_SIZE))
> + return XLATE(p, L4_34XX_PHYS, L4_34XX_VIRT);
> + if (BETWEEN(p, L4_WK_AM33XX_PHYS, L4_WK_AM33XX_SIZE))
> + return XLATE(p, L4_WK_AM33XX_PHYS, L4_WK_AM33XX_VIRT);
> } else if (cpu_is_omap34xx()) {
> if (BETWEEN(p, L3_34XX_PHYS, L3_34XX_SIZE))
> return XLATE(p, L3_34XX_PHYS, L3_34XX_VIRT);
> --
> 1.7.0.4
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