From 5532d93990fbb1d780224d5a971412e19c18fb1b Mon Sep 17 00:00:00 2001 From: Angel Pons Date: Tue, 7 Jul 2020 22:09:08 +0200 Subject: soc/samsung/exynos5250: Drop dead code MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This code is not even being build-tested. Drop it before it grows moss. Change-Id: I4772680875b20308e57da073bbcdc4597aeed893 Signed-off-by: Angel Pons Reviewed-on: https://review.coreboot.org/c/coreboot/+/43215 Reviewed-by: Julius Werner Reviewed-by: Michael Niewöhner Tested-by: build bot (Jenkins) --- src/soc/samsung/exynos5250/dmc_init_ddr3.c | 14 ----------- src/soc/samsung/exynos5250/fb.c | 8 ------ src/soc/samsung/exynos5250/uart.c | 40 ------------------------------ 3 files changed, 62 deletions(-) (limited to 'src') diff --git a/src/soc/samsung/exynos5250/dmc_init_ddr3.c b/src/soc/samsung/exynos5250/dmc_init_ddr3.c index 029171efdc..f4150203ea 100644 --- a/src/soc/samsung/exynos5250/dmc_init_ddr3.c +++ b/src/soc/samsung/exynos5250/dmc_init_ddr3.c @@ -19,20 +19,6 @@ static void reset_phy_ctrl(void) write32(&exynos_clock->lpddr3phy_ctrl, LPDDR3PHY_CTRL_PHY_RESET_DISABLE); -#if 0 - /* - * For proper memory initialization there should be a minimum delay of - * 500us after the LPDDR3PHY_CTRL_PHY_RESET signal. - * The below value is an approximate value whose calculation in done - * considering that sdelay takes 2 instruction for every 1 delay cycle. - * And assuming each instruction takes 1 clock cycle i.e 1/(1.7 Ghz)sec - * So for 500 usec, the number of delay cycle should be - * (500 * 10^-6) * (1.7 * 10^9) / 2 = 425000 - * - * TODO(hatim.rv@samsung.com): Implement the delay using timer/counter - */ - sdelay(425000); -#endif udelay(500); } diff --git a/src/soc/samsung/exynos5250/fb.c b/src/soc/samsung/exynos5250/fb.c index 0292d76f25..98a4c663ec 100644 --- a/src/soc/samsung/exynos5250/fb.c +++ b/src/soc/samsung/exynos5250/fb.c @@ -140,14 +140,6 @@ void fb_init(unsigned long int fb_size, void *lcdbase, write32(&exynos_fimd->dpclkcon, 1 << 1); } -#ifdef UNUSED_CODE -void exynos_fimd_disable(void) -{ - write32(&exynos_fimd->wincon0, 0); - clrbits32(&exynos_fimd->shadowcon, CHANNEL0_EN); -} -#endif - /* * Configure DP in slave mode and wait for video stream. * diff --git a/src/soc/samsung/exynos5250/uart.c b/src/soc/samsung/exynos5250/uart.c index b3dd37e939..326312576b 100644 --- a/src/soc/samsung/exynos5250/uart.c +++ b/src/soc/samsung/exynos5250/uart.c @@ -13,34 +13,6 @@ #define RX_FIFO_FULL_MASK (1 << 8) #define TX_FIFO_FULL_MASK (1 << 24) -#if 0 -/* - * The coefficient, used to calculate the baudrate on S5P UARTs is - * calculated as - * C = UBRDIV * 16 + number_of_set_bits_in_UDIVSLOT - * however, section 31.6.11 of the datasheet doesn't recommend using 1 for 1, - * 3 for 2, ... (2^n - 1) for n, instead, they suggest using these constants: - */ -static const int udivslot[] = { - 0, - 0x0080, - 0x0808, - 0x0888, - 0x2222, - 0x4924, - 0x4a52, - 0x54aa, - 0x5555, - 0xd555, - 0xd5d5, - 0xddd5, - 0xdddd, - 0xdfdd, - 0xdfdf, - 0xffdf, -}; -#endif - static void serial_setbrg_dev(struct s5p_uart *uart) { u32 uclk; @@ -51,18 +23,6 @@ static void serial_setbrg_dev(struct s5p_uart *uart) val = uclk / get_uart_baudrate(); write32(&uart->ubrdiv, val / 16 - 1); - - /* - * FIXME(dhendrix): the original uart.h had a "br_rest" value which - * does not seem relevant to the exynos5250... not entirely sure - * where/if we need to worry about it here - */ -#if 0 - if (s5p_uart_divslot()) - writel(udivslot[val % 16], &uart->rest.slot); - else - writeb(val % 16, &uart->rest.value); -#endif } /* -- cgit v1.2.3